link reaction Flashcards
what stage of respiration is the link reaction
second stage
where does the link reaction occur
in the mitochondria matrix
what is the imput of the link reaction
pyruvate
how does pyruvate enter the mitochondria
through a transport protien via active transport
one pyruvate has entered the mitocondria what happens
it looses a carbon molecule
( decarboxyleration)
what is the process causing a loss of co2
decarboxyleration
what is added to added after co2 is lost
COA
what is added to pyruvate
nad
what happens to nad
it is reduced to nadh
what reaction is this
oxidation
why is the addition of nad important
the addition of nad being reduced to nadh facilitates the addition of COA
what does the addition of COA form
ACETYL COA
what is the product of the link reaction
ACETYL COA
describe and explain the link reaction (4 marks)
- pyruvate actively transported in via carrier protien into matrix
- decarboxylation of pyruvate, carbon removed
- pyruvate oxidised forming actyle
- oxidastion of pyruvate facciliates addition of COA
- formng ACYTLE COA
what is the imput of krebs cycle
NAD
COA
what is the product of the krebs cycle
acetyl COA
what are the main stages of the link reaction
- decarboxilation of pyruvate
- oxidation of pyruvate forming acetate
- addition of COA
